Week 3 Lecture and video notes Lighting Design
Week 3 Lecture and video notes Lighting Design 308
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ANTH 1010 -090
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This 4 page Class Notes was uploaded by Kaylee Lynn Rowland on Saturday September 24, 2016. The Class Notes belongs to 308 at University of Wisconsin - Stout taught by Julie Peterson in Fall 2016. Since its upload, it has received 3 views. For similar materials see Lighting Design in DESIGN at University of Wisconsin - Stout.
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Date Created: 09/24/16
Des 308 Lighting Design Instructor: Julie Peterson Wednesday, September 21, 2016 Lecture notes Color and Light INTRO - Best light to use at night is red - Warm colors make you feel more intense and cool is more relaxing - Blue light comes from the phone – don’tbe on phone before you go to sleep and computers and TV It stalls your melatonin production o Apps to download that turn of the blue wave lengths on computers and phones - Lighter colors help with reflective values - LED’s o Creates more flexibility within hospitality spaces o Color tuning for ambiance and time of day Red light causes works to be more alert for night shift workers o People want control in the work place Higher satisfaction levels Maybe result in returned customers COLOR VIDEO - What is light- pure form of energy, electromagnetic spectrum o Radio, infrared, ultra violet, x-rays and gamma rays - What is color o Light that is reflected back to our eyes o Objects don’t have color, just the ability to reflect the color of light back Roy-g-biv - Reflection o Occurs whenlight strikes an object and bounces back to eyes o Smooth surface Light bounces in one direction - Diffraction o Occurs when light waves bend around an object and spreads out o Blurred edges of a shadow - Interference o Occurs when two or more waves are in the space at the same time o Constructive combined to make one o Destructive waves cancel each other - Refraction o What happens when light wave bends from one object to another Light hits water Prism rainbows Rainbows - Light and matter o Transparent matter Transmit light Glass Light passes through and can see through it clearly o Translucent matter Some light pass through but cannot see through clearly Frosted glass o Opaque matter Absorb or reflect all light and can’t see through them at all Books and furniture - Why we see colors o Reflection Apples absorb all colors except red so the red light bounces back o Particles scatter the light and how we perceive it - Types of primary colors o Colors of light Red, blue, green –all three mixed equals white - IncandescentLight o Heated to create light o Most energy is lost in heat instead of light - Fluorescent o Less energy o Last longer o Filled with argon gas - Lasers o Important to medicine Cauterizes and more precisethan scalpel o Business cashier o Entertainment Cds and dvds use lasers that reflect off mirror light appearance DES 308 Lighting Design Instructor: Julie Peterson Friday, September 23, 2016 Lecture Notes WEEK 3 What is Light? - Form of radiant energy – produces and visual sensation using the retina - Color of light makes a difference – changes the way a space isperceived o Cool and warm light – color appearance - Nanometer o .0000000001 – to the ninth power? - Our eyes peek between 500-550 o 600 below to elders looks gray (yellowing of the eyes) o Red 700-650 nanometers o Orange 640 – 590 o Yellow 580- 550 o Green 530-490 o ………………………………………………. - Warm light has long wave lengths with a higher nm - Cool light as short wave lengths with a lower nm - Spectral power o Light source can be characterized by its relative power at each wavelength Power vs wavelength - If we wanted to emphasizethe red of an object, we need red in the light source so the object can reflect the red to our eyes - Correlated color temp ( CCT) o Measured in degrees kelvin o Think f it as a black piece of metal that can be heated by passing electric current through it, when it gets hot enough, it begins to glow, as the temperature increase, its spectral output changes so its color appearance changes as a function of temperature o WINCHIP PAGE 36 DIAGRAM o 2200 – 8500 k is warm to cool Opposite of nanometer scale o If you have Incandescent or halogen or interior colors are warm – 3000k and lower o If Daylight is dominate or interior colors are cool – 4100k and up o If you have a mix or don’t have any idea about the colors to be used– 3500k - Color rendering index o Evaluates the sourceand how it makes an object look Have to have the same kelvin (CCT) o 0-100 – 100 being the closest match of a group of colors under the standard source and the test source – similar CCT’s Higher the number the better - How to use CRI and CCT together? o Warm or cool? o 70-80 General purpose and transitional | 80+ for merchandising and other higher end areas 70’s least expensive 80’s when color is important 90’s when colors are very important o Seeing is believing - Rules o How much daylight o Proxemics of other lightsource colors o Appearance from the exterior o Application --- hierarchy of program priorities -
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